Immuno-oncology is a rapidly evolving field of cancer research that focuses on harnessing the body's own immune system to target and destroy cancer cells. This approach is based on the understanding that the immune system has the potential to recognize and eliminate cancer cells, but that cancer cells often develop ways to evade detection by the immune system. Research in immuno-oncology involves studying the interactions between cancer cells and the immune system, identifying new targets for immunotherapy, and developing novel treatments that can enhance the immune response against cancer. Some of the most promising approaches in immuno-oncology include checkpoint inhibitors, adoptive cell therapy, cancer vaccines, and cytokine-based therapies. Overall, immuno-oncology holds great promise for revolutionizing cancer treatment by improving the effectiveness of existing therapies, increasing survival rates, and reducing the harmful side effects of traditional treatments like chemotherapy and radiation therapy.